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If anyone is based in the US and wants to purchase an SRM, I am happy to offer advice and/or help with ordering. I can even extend a discount to forum members.

I'm a rider and racer first, and I've been a tester of other power meters. I've owned, tested, installed, and/or analyzed power files from just about every unit out there.

Happy to help anyone here out.

PS My take on the rechargeable battery thing: Last time I was in Germany I got a look at the then-prototype of the Origin meter, and I had a long chat about batteries. I know that the idea of recharging a battery is appealing, but with the long-life of the current models (1,900h & up for almost every unit), changing batteries is infrequent at best. It's also not a bad idea to have a meter in for servicing every 4-5 years -- new firmware, validation of the unit, etc., is valuable for these devices which can be used in harsh environments.

Also, the state of rechargeable batteries is such that their behavior when nearing depletion changes in a different way than non-rechargeable. IME in various applications, this can adversely affect discharge, and I've seen funny behavior from meters when voltage deviates even a slight bit from what is expected.

IMO, it's an extra charge, it requires user attention (I don't know what ACTUAL battery life is like from the rechargeable, but it is hard to beat 3,000h from some units), and it may exhibit odd behavior if a user is not diligent about keeping it topped up.

Further, rechargeable batteries DO require service; the memory effect means that batteries lose ability to hold a charge over time. This seems to happen even for those batteries that are not supposed to have a memory effect. Anyone with a mobile phone or laptop computer knows how these degrade within a few years. One may still send in the meter every 4-5 years anyway.

- Some Li have heat sensitive safety cutoffs. Cutoff can fire and permanently kill a battery on a bike stored in a hot car. Annoying.

- Recharge cables dangling off a stored bike are a problem. If you roll the bike forgetting to disconnect, you risk damaging the USB port. Likewise, if a family member walks by the bike and accidentally snags the cable, c'est la vie.

- Some Li have heat sensitive safety cutoffs. Cutoff can fire and permanently kill a battery on a bike stored in a hot car. Annoying.

- Recharge cables dangling off a stored bike are a problem. If you roll the bike forgetting to disconnect, you risk damaging the USB port. Likewise, if a family member walks by the bike and accidentally snags the cable, c'est la vie.

The new shimano power meter has the equivalent of a magsafe connector, so that at least isn't a problem.

My 24 mm Origin is 686 gm on my scales with 9100 compact rings vs. the DA 7950 it replaced at 779 gm. It is definitely a nice piece of kit and like itsacarr I've been impressed with to the point I might not be disappointed if/when the DA options go away at SRM. I had concerns about the NDS spline adapter but no issues so far. It required a tweak to the magnet location from the DA but has been bullet-proof since installed.

My 24 mm Origin is 686 gm on my scales with 9100 compact rings vs. the DA 7950 it replaced at 779 gm. It is definitely a nice piece of kit and like itsacarr I've been impressed with to the point I might not be disappointed if/when the DA options go away at SRM. I had concerns about the NDS spline adapter but no issues so far. It required a tweak to the magnet location from the DA but has been bullet-proof since installed.